/*
 * Copyright [2020-2030] [https://www.stylefeng.cn]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1.请不要删除和修改根目录下的LICENSE文件。
 * 2.请不要删除和修改Guns源码头部的版权声明。
 * 3.请保留源码和相关描述文件的项目出处，作者声明等。
 * 4.分发源码时候，请注明软件出处 https://gitee.com/stylefeng/guns
 * 5.在修改包名，模块名称，项目代码等时，请注明软件出处 https://gitee.com/stylefeng/guns
 * 6.若您的项目无法满足以上几点，可申请商业授权
 */
package cn.stylefeng.roses.kernel.config.api.context;

import cn.stylefeng.roses.kernel.config.api.ConfigApi;
import cn.stylefeng.roses.kernel.config.api.exception.ConfigException;

import static cn.stylefeng.roses.kernel.config.api.exception.enums.ConfigExceptionEnum.CONFIG_CONTAINER_IS_NULL;

/**
 * 系统配置表相关的api
 * <p>
 * 系统配置表默认由数据库实现，可实现在线管理，也可以拓展redis等实现
 * <p>
 * 使用之前请调用setConfigApi初始化
 *
 * @author fengshuonan
 * @date 2020/10/17 10:27
 */
public class ConfigContext {

    private static ConfigApi CONFIG_API = null;

    /**
     * 获取config操作接口
     *
     * @author fengshuonan
     * @date 2020/10/17 14:30
     */
    public static ConfigApi me() {
        if (CONFIG_API == null) {
            throw new ConfigException(CONFIG_CONTAINER_IS_NULL);
        }
        return CONFIG_API;
    }

    /**
     * 设置config api的实现
     *
     * @author fengshuonan
     * @date 2020/12/4 14:35
     */
    public static void setConfigApi(ConfigApi configApi) {
        CONFIG_API = configApi;
    }

}
